Single piece Hexibase Tang Band Subwoofer (Fusion 360)

thingiverse

This is a remix of Hexibase's fantastic 3D printed subwoofer using a Tang Band W3 1876S 3" driver. I wanted to print this design in one piece rather than gluing it together. So, I copied Hexibase's original design in Fusion 360 and made some significant tweaks. You can customize the F360 archive yourself. I made several key changes to this design: * Prints in one continuous piece * Includes slots for holding captive M3 nuts securely * Features a surface pattern that shows the internal layout clearly * Has integrated supports for the chamber and driver cutout * Offers optional holes for M3 threaded inserts The design relies heavily on supports for the chamber roof and speaker cutout. I created integrated supports that work well without using too much material. If you prefer, you can generate supports in your slicer instead. It took me about 15 minutes to carefully remove the supports with some pliers and flush cutters. To me, this is preferable to having to print the subwoofer in two halves and glue them together, but that's a matter of personal opinion. I changed the waveguide cross-section to come to a peak rather than a rounded top. (I adjusted the height slightly to keep the cross-sectional area the same.) This creates a 45-degree overhang that prints fine without supports. To create a nice airtight wall with only a small fraction of the area directly supported, I designed a vaulted ceiling above the chamber. I've provided versions of the file with and without integrated supports. The terminal cut-outs are sized for these binding posts: https://www.amazon.com/gp/product/B01LYA4YDP To emphasize the surface pattern, you can swap filament color a few layers in (Prusa Slicer makes this very easy). Note that this subwoofer prints in one piece, but depending on your settings, it will typically weigh well over 1 kg, so most people will have to change filament part way through. I put in four holes for threaded inserts like these: https://www.amazon.com/gp/product/B00Y20YLKY There are STL's with and without the inserts. To test the supports before committing to the whole print, I created a test print of just the chamber section.